111121021122 has 8 divisors (see below), whose sum is σ = 222242042256. Its totient is φ = 37040340372.

The previous prime is 111121021103. The next prime is 111121021133. The reversal of 111121021122 is 221120121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

111121021122 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9260085088 + ... + 9260085099.

It is an arithmetic number, because the mean of its divisors is an integer number (27780255282).

Almost surely, 2^111121021122 is an apocalyptic number.

111121021122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111121021122 is a wasteful number, since it uses less digits than its factorization.

111121021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18520170192.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111121021122 its reverse (221120121111), we get a palindrome (332241142233).

The spelling of 111121021122 in words is "one hundred eleven billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".